1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/* Copyright (C) 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <nss.h>
#include <errno.h>
#include <shadow.h>
#include <string.h>
#include <bits/libc-lock.h>
#include <rpcsvc/nis.h>
#include <rpcsvc/nislib.h>
#include "nss-nisplus.h"
#include "nisplus-parser.h"
__libc_lock_define_initialized (static, lock)
static nis_result *result = NULL;
static nis_name tablename_val = NULL;
static u_long tablename_len = 0;
static enum nss_status
_nss_create_tablename (void)
{
if (tablename_val == NULL)
{
char buf [40 + strlen (nis_local_directory ())];
char *p;
p = stpcpy (buf, "passwd.org_dir.");
p = stpcpy (p, nis_local_directory ());
tablename_val = strdup (buf);
if (tablename_val == NULL)
return NSS_STATUS_TRYAGAIN;
tablename_len = strlen (tablename_val);
}
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_setspent (void)
{
enum nss_status status = NSS_STATUS_SUCCESS;
__libc_lock_lock (lock);
if (result)
nis_freeresult (result);
result = NULL;
if (tablename_val == NULL)
status = _nss_create_tablename ();
__libc_lock_unlock (lock);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_endspent (void)
{
__libc_lock_lock (lock);
if (result)
nis_freeresult (result);
result = NULL;
__libc_lock_unlock (lock);
return NSS_STATUS_SUCCESS;
}
static enum nss_status
internal_nisplus_getspent_r (struct spwd *sp, char *buffer, size_t buflen)
{
int parse_res;
/* Get the next entry until we found a correct one. */
do
{
if (result == NULL)
{
if (tablename_val == NULL)
if (_nss_create_tablename () != NSS_STATUS_SUCCESS)
return NSS_STATUS_UNAVAIL;
result = nis_first_entry (tablename_val);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
return niserr2nss (result->status);
}
else
{
nis_result *res;
res = nis_next_entry (tablename_val, &result->cookie);
nis_freeresult (result);
result = res;
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
return niserr2nss (result->status);
}
parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen);
} while (!parse_res);
return NSS_STATUS_SUCCESS;
}
enum nss_status
_nss_nisplus_getspent_r (struct spwd *result, char *buffer, size_t buflen)
{
int status;
__libc_lock_lock (lock);
status = internal_nisplus_getspent_r (result, buffer, buflen);
__libc_lock_unlock (lock);
return status;
}
enum nss_status
_nss_nisplus_getspnam_r (const char *name, struct spwd *sp,
char *buffer, size_t buflen)
{
int parse_res;
if (tablename_val == NULL)
if (_nss_create_tablename () != NSS_STATUS_SUCCESS)
return NSS_STATUS_UNAVAIL;
if (name == NULL || strlen (name) > 8)
return NSS_STATUS_NOTFOUND;
else
{
nis_result *result;
char buf[strlen (name) + 24 + tablename_len];
sprintf (buf, "[name=%s],%s", name, tablename_val);
result = nis_list (buf, FOLLOW_PATH | FOLLOW_LINKS, NULL, NULL);
if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
{
enum nss_status status = niserr2nss (result->status);
nis_freeresult (result);
return status;
}
parse_res = _nss_nisplus_parse_spent (result, sp, buffer, buflen);
nis_freeresult (result);
if (parse_res)
return NSS_STATUS_SUCCESS;
if (!parse_res && errno == ERANGE)
return NSS_STATUS_TRYAGAIN;
else
return NSS_STATUS_NOTFOUND;
}
}
|
